Question

. Solve: 15 − 12n = n + 2 1

Answer 1

n = -6/13

Explanation:

15 − 12n = n + 21

15 - 13n = 21

-13n = 6

n = -6/13

So, the answer is n = -6/13

Answer 2

`\sf n=(-6)/(13)`

Explanation:

Solving algebraic equations:

15 - 12n = n + 21

• Isolate n. To isolate n, first subtract 15 from both sides,

-12n = n + 21 - 15

-12n = n +6

• Subtract n from both sides,

-12n - n = 6

-13n = 6

• Divide both sides by (-13)

`\sf (-13n)/(-13)=(6)/(-13)\\\\\\~~~~~~~ n =(-6)/(13)`